- Isabella Abiera - Hazel (voice)
- Johnny Young - Min-Gi (voice)
- Sekai Murashige - Ryan (voice)
- Kirby - Grace (voice)
- Kirby - Voice 3 / Mail Lady (voice)
- Kyle McCarley - Simon (voice)
- Kyle McCarley - Voice 4 / Playbill / Spotlight / Tragedy Mask (voice)
- Jeremy Crutchley - Glad-One (voice)
- Jeremy Crutchley - Mask Monster (voice)
- Jeremy Crutchley - The Dean (voice)
- Ashley Johnson - Mirror Tulip "MT" (voice)
- Ashley Johnson - Tulip Olsen (voice)
- Ashley Johnson - The Steward (voice)
- Ashley Johnson - Mirror Tulip (voice)
- Ashley Johnson - Mom / Girl (voice)
- Ashley Johnson - Popcorn (voice)
- Ashley Johnson - Lake (voice)
- Robbie Daymond - Jesse (voice)
- Robbie Daymond - Richard Trundleshank (voice)
- Robbie Daymond - Bully 2 (voice)
- Robbie Daymond - Fyodor / Apex Raider 2 (voice)
- Owen Dennis - Sad-One (voice)
- Owen Dennis - Greige / Giant (voice)
- Owen Dennis - Frank (voice)
- Owen Dennis - Cross-Eyed Duck / Talking Skeleton (voice)
- Owen Dennis - Toad / Bully 3 (voice)
- Owen Dennis - Toad / Spells Wizard / Bear (voice)
- Owen Dennis - TV Jingle (voice)
- Owen Dennis - Pencil People (voice)
- Rhys Darby - Randall / Balloon Randall (voice)
- Justin Felbinger - Nate (voice)
- Grey DeLisle - Lunch Lady / Tape Merchant / Seedy Merchant (voice)
- Laraine Newman - Marietta Gillicutty / Maise Trundleshank (voice)
- Kari Wahlgren - Sinesta Gillicutty / Bree Trundleshank / Girl Quadruplets (voice)
- Rick Zieff - Ithmush Trundleshank / Nathaniel Trundleshank / Silas Trundleshank (voice)
- Wayne Knight - Marcel (voice)
- Scott Menville - Troy / Bully 1 (voice)
- Reagan Gomez-Preston - Mikayla (voice)
- Reagan Gomez-Preston - Mikayla / Dolphin Handler / Ugly Irwin (voice)
- Bill Corbett - Perry the Parasite (voice)
- BeBe Zahara Benet - Sashay (voice)
- Ben Mendelsohn - Agent Mace (voice)
- Bradley Whitford - Agent Sieve (voice)
- Lindsay Katai - Nancy (voice)
- Lindsay Katai - Little Badger Boy / Badger Mother (voice)
- Keith Ferguson - Comedy Mask (voice)
- Keith Ferguson - Goblin / Tusk Creature / Announcer Tannuki (voice)
- Keith Ferguson - Wilbur Gillicutty / Seth Trundleshank / Boy Quadruplets (voice)
- Lily Sanfelippo - 6 Year Old Tulip / 8 Year Old Tulip (voice)
- Matthew Rhys - Alrick (voice)
- Matthew Rhys - Aloysius (voice)
- Kate Mulgrew - The Cat (voice)
- Mark Fite - Andy Olsen / Harry The Bike Guy (voice)
- Mark Fite - Andy Olsen (voice)
- Ron Funches - Khaki Bottoms (voice)
- Lena Headey - Amelia / Teacher (voice)
- Lena Headey - The Conductor / Amelia (voice)
- Ernie Hudson - Atticus (voice)
- Justin Michael - Friend (voice)
- Justin Michael - Kevin / Turtle Guard (voice)
- Justin Michael - Kevin / Soldier Turtle (voice)
- Audrey Wasilewski - Megan Olsen (voice)
- Dee Bradley Baker - Monster Atticus (voice)
- Antonio Raul Corbo - Apex Child / Apex Child 2 (voice)
- Jenna Davis - Lucy / Apex Child 3 / Apex Girl (voice)
- Jenna Davis - Lucy / Kevin Jr. / Lindsay (voice)
- Alfred Molina - Chandelier (voice)
- Jacob Farry - Apex Kid 2 (voice)
- Madeline Queripel
- Rob Sorcher
- Pieterjan Kneynsburg
- Owen Dennis
- Wilson Acker
- Tramm Wigzell
- Kristi Reed
- Morgan Z Whirledge
Wayne Knight interpreta a Marcel (voice) en la serie.
Alfred Molina interpreta a Chandelier (voice) en la serie.
Johnny Young hace el papel de Min-Gi (voice).
Sekai Murashige hace el papel de Ryan (voice).
Capítulo disponible en las siguientes plataformas:
